<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
	</head>
	<body>
		<script type="text/javascript">
			function * sheng(){
				alert(1);
			}
			let sdf=sheng();
			sheng().next();
			//next可以传入实参
		</script>
	</body>
</html>
